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CBSE Class 12 Physics 2023 Outside Delhi Set 3 Paper

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Question : 6
Total: 13
The current is a device varies with time t as I=6t, where I is in mA and t is in s. The amount of charge that passes through the device during t=0 s to t= 3 s is
Solution:     👈: Video Solution
‌I‌=‌
dO
dt
‌‌ Or, ‌‌dQ‌=I‌dt
‌ Or, ‌‌dQ‌=6t‌dt
‌ Or, ‌‌∫dQ‌=
3
∫
0
6t‌dt
‌ Or, ‌‌Q‌=6‌
3
∫
0
t‌dt
‌ Or, ‌‌Q‌=6[‌
t2
2
]03
‌ Or, ‌‌Q‌=27‌mC
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